Side by side comparison and review of UMIDIGI One Max and Xiaomi Redmi 9. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 156.8 mm | 163.32 mm | Xiaomi Redmi 9 has greater height than UMIDIGI One Max. |
| Width | 75.6 mm | 77.01 mm | Xiaomi Redmi 9 has greater width than UMIDIGI One Max. |
| Depth | 8.35 mm | 9.1 mm | UMIDIGI One Max is narrower than UMIDIGI One Max. |
| Weight | 205 g | 198 g | Xiaomi Redmi 9 is lighter than UMIDIGI One Max. |
| Body Colour | Twilight | Carbon grey | |
| Body Material | Tempered glass, aluminium frame | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb) | |
| Integrated Components | - | Ultra-linear speaker | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Screen Size (Display Size) | 6.3" | 6.53" | Xiaomi Redmi 9 has larger screen size than UMIDIGI One Max. |
| Screen Resolution (Display Resolution) | 1520 x 720 pixels | 2340 x 1080 pixels | Xiaomi Redmi 9 has better screen resolution than UMIDIGI One Max. |
| Display Format | - | Full HD+ | |
| Pixel Density | 271 ppi | 394 ppi | Xiaomi Redmi 9 has better pixel density than UMIDIGI One Max. |
| Aspect Ratio | 19:9 | 19.5:9 | |
| Max Brightness | - | 400 cd/m² | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | In-Cell Display Technology, Reading mode, Colour temperature adjustment | Colour temperature adjustment, Dot Drop display, Reading mode 2.0 | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Processor Type (CPU) | MediaTek Helio P23 | MediaTek Helio G80 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Mali-G71 MP2 | Mali-G52 MC2 |
| MEMORY | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | UMIDIGI One Max has more internal memory than Xiaomi Redmi 9. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSD |
| CAMERA | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 13 Megapixel | Xiaomi Redmi 9 has better camera resolution than UMIDIGI One Max. |
| Sensor Name | Omnivision OV12870 sensor | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.2 | UMIDIGI One Max has better lens aperture than UMIDIGI One Max. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 75.2 degree(s) | |
| Focus Adjustment | - | Automatic | |
| Special Effects | - | HDR, Kaleidoscope | |
| Camera Modes | Panorama | Portrait mode | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| Light Source | Dual LED flash | Flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Real-time photo filters | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 8 Megapixel | Xiaomi Redmi 9 has better second camera resolution than UMIDIGI One Max. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 118 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 8 Megapixel | UMIDIGI One Max has better front camera resolution than Xiaomi Redmi 9. |
| Sensor Name (Front) | Samsung S5K3P3 | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | - | 77.8 degree(s) | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Portrait mode | |
| Face Recognition (Face ID) | Face recognition | - | UMIDIGI One Max has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | Selfie countdown | Self-timer, Palm shutter |
| BATTERY AND CHARGING | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Battery Capacity (Battery Size) | 4150 mAh | 5020 mAh | Xiaomi Redmi 9 has larger battery capacity than UMIDIGI One Max. |
|---|---|---|---|
| Wireless Charging | Yes | - | UMIDIGI One Max can be charged wirelessly. |
| Wireless Charging Standards | Qi, Fast Wireless Charging | - | |
| Talk Time | - | 1860 minutes | |
| Run Time Details | - | Talk: up to 1860 min Continuous navigation: up to 19 hrs Playback (video): up to 19 hrs Playback (Music): up to 185 hrs |
| CELLULAR | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1.0 Oreo | - | |
| Navigation | GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | - | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 34, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 | |
| Bluetooth Profiles | HID | - | |
| NFC | Yes | - | UMIDIGI One Max has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, MPEG-4, M4V, ASP, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) | MKV, H.264, ASP, MP4 |
| FEATURES | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, gyro sensor, geomagnetic sensor, L-sensor, P-sensor | Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Face recognition, fingerprint reader | |
| Additional Phone Features | Dual microphones | Fast Charging, AI face unlock |
| OTHERS | UMIDIGI One Max | Xiaomi Redmi 9 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, pre-installed screen protector, protective case | SIM card removal tool, USB-C cable, TPU case, 10W charger |
|---|
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